ramkrishna.s.vasudevan created HBASE-21981:
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Summary: MMaped bucket cache IOEngines does not work with
persistence
Key: HBASE-21981
URL: https://issues.apache.org/jira/browse/HBASE-21981
Project: HBase
Issue Type: Bug
Components: BucketCache
Affects Versions: 2.1.3
Reporter: ramkrishna.s.vasudevan
Assignee: Anoop Sam John
Fix For: 3.0.0, 2.2.0, 2.0.5, 2.3.0, 2.1.4
The MMap based IOEngines does not retrieve the data back if
'hbase.bucketcache.persistent.path' is enabled. FileIOEngine works fine but
only the FileMMapEngine has this problem.
The reason is that we don't get the byte buffers in the proper order while
reading back from the file in case of persistence.
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